Dump-car.



y P.V SEABERG.

DUMP GAB. APPLIUTIOIIILBD KAB. 12, 1908.

Patented 0ct.25,191o.

4 SHEETS-SHEET 1.

N sok Inventor nlneaae 77./ ffm L By F. SEABERG.

DUMP GAR.

APPLICATION FILED MAB. 12, 1908.

Patented oen. 25, 1910.

4 SHEETS-SHEET Z.

e Invani .um M

Mfnessea F. SEABERG.

DUMP GAR.

APPLICATION FILED un. 12, 190s.

l A Patented oct. 251910.

4 SHEETS-SHEET 3.

y f' @my I JZilorney-S F. SEABERG.

DUMP GAB. A APPLICATION FILED IAB.r 12, 1908.

Patented Oct. 25, 191-0.

4 SHEETS-SHEET 4.

/3' v f E Witnesses Y y Y B] Y y lofnee/S 'UNTTED STATES PATENT OFFICE.

'FREDERICK SEBERG,

l Jeu'.

-Mesfg-.exe Y or CHICAGO, ILLINOIS, Assn-Non, BY MEsNE ASSIGNMENTS, To

issNCEfi-sesf-feF-A@sesam-ries,

doors' locked in either open-or closed positiolnandwhich may he used tochange thc doors" from one'of theScposi-tions lo the' other. v

These ol ject-s jparent in the following'.s pcciliralion and Fig'n'lt liria 'cross-'stadion ot`-a dump rar hddy'emtmdyingimyiim-lworemeut. Figa-3 isa plan View ou au cillin-ged scale -of the doo1l-'.l|ol d ing.fandoperating mechanism. Fig. 2l is au elevation of the sante mei-hauism.Fig. l an eli-ration corresponding toFig. l. showing thedoor holding'and op- 'criiting mechanism on :in-enlarged scale in anintermediateposition. Fig. 5 is an elevation 'of ,a modification. Fig.is an elevation showing a type of car in which my invention may beembodied.

The dump car illustrated is of a type having its Hoor composed of-downwardty and outwardly sloping sections 15. 'lhe side walls areterminated below by pendent swinging doors 16, which, when closcd, haveltheir lower edges adjacent to the lower edges of the sloping fioor 15.The center sill consists of two parallel channel beams 31, and itsupports short, c ross l'neiubers 3Q, which'in turn support the tlo'or15.

To hold and control the doors, I provide the following Idescrita-.d'mechanism referring more particularly to F l, 2. 2l, and 4.

A 'square slmftl'l'i' extends longitudinally under, the tioor beingjournaled in the cross members 32, and a crank 18 projects therefrom. Tothe end of this crank there is pivoted a crooked link '19 and atthe-middle point of this crooked link 41f), there is pivoted a shorterlink 20. These links are adapted tohlng down between the members 31 ofthe center sill. At the fixed point 21 there l ndazff l of the.aforesaid link-20 attached-11156 theol the door 16. 'Opposite lthe4lever 22i1istlb 60 lever :2G having a fixed fulcrum 'Qfaliti' aixotl'setf 27 which is l'iii'oted to theiaforisaid-'ti link 19. ThisIleverlt is ronnccteds-byiitlieffi l link )Hto the door. on theoppositcfsidelj ull-1li! 'lhe dooror doors-1G are h'eld aiu ol`t-"65trolled by means of any desired nuni'hetf-"tl'f-J 'links 24. and 2h eachpair being' operatedUyl i trom the squared shaft 17 by such amiehiifamsm' as hasI lbeen described. Only 'o nesuth-hv is pivoted u levcr 22which has an oti'set 23 Y in :al p'ositioiiintermedia-te; between'tremiyopcn and closed po'sltioiis. f

. in open mechanism is shown in the drawings,-iflvlnfilo; the vdoorsare"closed` thc parts will occupy@ i'ili'tlgl@ liv 9 fi iiuit oc lt:uill he. iioted that in the closed'pos' the, lever 22 and its attachedlink"areth stantially in, line. that is.' th'e lerer ish dead renter.and thus the door 1G"is"lcli`\"' shut. Si'niilarlyfforthe other-door.v'ilo'ref-"U" i8 over, when the doors are closed the crank 1S ispractically on its dead center and thus there are two dead centers inthe train of mechanism from the-shaft 17 to either door. (ln the otherhand. when thel doors are in extreme open position, it. will be notedthat the crank t8 has just passed its dead center with relation to theattached link 19,'and thus itwill be scelrthat the doors are lockedosition. But it is obvious that rotation o the s uared shaft17 willchange the mechanism rom either one of these positions to the other. Anydesired means may be used for locking the squared shaft 17 in,

essential parts o't the operati-ng i1' either of its extreme positions,but .it is .t0

observed that such locking is merely amatjtei' o f security, for none.of the load would be transmitted in any substantial degree to the lock.I have not shown mechanism for 'rotating the shaft 17 'or for lockingit.` as

such mechanism is well-known and could be 5 readily7 supplled by oneskilled 1n thls art. lo"

It will be seen that my door controlling v mechanism is locatedcompactly beneath the -apex of the floor of the car` that this mechamsmcomprises only a single shaft. extending lengthwise of the car, andconnect-ions therefrom to the Several doors, and that the connectionsare of a positive character thus being distinguished from such means aschains which may be effective in one direction only.

Referring to the modification illust-rated in Fig. 5, this differs fromthe one previously described in thatthe link 19 is straight instead ofbeing bent, and the oilset 23 on the lever 22 is omitted,'the link 20being lengthened correspondingly and having its end.

to a fixed part of the car, and positive link connections from 'theshaft through said mechanism to the said doors.

2. In a dump car, pendent side doors ada ted to swing outwardly, alongitudinal sha t under the car, a crank projecting from said shaft,and door operating mechanism extending from the end of said crank to thedoors on both sides of the car.

3.4 In a dump car, a longitudinal shaft, a crank rojecting therefrom, alink connected to t e end thereof, a branch link connected to anintermediate point on the aforesaid link, and operating connections fromthe ends of the two links to t-he respective doors on o osite sides vof,the car.

4. n a dump car, a floor sloping dow'nwardly from the center to eachside, pendent doors at the sides, a shaft under the center ofthe floor,mechanism directl below the shaft and connected thereto, an links fromsaid mechanism tothe doors.

5. In a dump car, a dumping door, a center sill, a lonfritudinal shaftsupportedabove the center .s1 l, and mechanism extending from said shaftdown through the center sill, and thence to the said door.

6. In a dump car, endent doors at the sides thereof, a ngitu inallydisposed operating shaft adjacentthe center of the car, V

a crank on said shaft,'levers pivoted to a fixed part of the caradjacent the center thereof, connections between said crank and levers,and links connecting said lcvvers with said doors, t

7. In a dump car, a center sill comprising two longitudinal membersspaced apart, a bottoni comprising sections sloping downwardly andoutwardly from a'Jongitudinal line above the center sill, pendent sidedoors, a longitudinal operating shaft beneath said bottom and supportedupon said center sill, acrank upon said shaft,

levers pivoted to said. center sill members,

links between said center sill members connectin t said levers to'saidcrank and links exten ing from said levers to said doors.

In testimony whereof, I, have subscribedmy name. y j

FREDERICK SEABERG. Witnesses:

ANNIE C. COURTENAY, LILmAN A. Knaur.

